MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 479 



welder station GO), Ilumacuo (Blackwelder station 54), Lake Guanica 

 (J3arlington, in M.C.Z.), Guanica (Wolcott, 1924, 1936; Wolcott collection; 

 Dozier, in U.S.N.M. ; Blackwelder stations 354, 356), Lajas (Wolcott col- 

 lection; Dozier, in U.S.N.M.), Hormigueros (Wolcott collection; Dozier, in 

 U.S.N.M.), Ensenada (Wolcott collection; Dozier, in U.S.N.M.), Sabana 

 Grande (Dozier, in U.S.N.M.), Mayagiiez (Dozier, in U.S.N.M.). 



St. Thomas: (Ericlison, 1839b; DuVal, 1857; Fauvel, 1863; L.eng and Mutchler, 

 1914). 



St. Kitts: (Blackwelder stations 297, 302, 304, 305, 306, 312). 



Antig-ua: (Blackwelder stations 275A, 275B, 2S1A, 285A, 285B, 290, 294; H. E. 

 Box, as Blackwelder stations 4440, 444R, 444T). 



Montserrat: (Blackwelder stations 262, 265B, 267B, 270). 



Guadeloupe: Basse Terre (Blackwelder station 75), Grande Terre (Blackwelder 

 stations 89, 90B). 



Dominica: (Blackwelder station 257B). 



Barbados: (Blackwelder stations 187, 193B, 194, 195, 198A, 199, 201 A, 201B). 



St. Vincent: (Erichson, 1839b; Du Val, 1857; Fauvel, 1863; Leng and Mutcbler, 

 1914; Blackwelder stations 168, 172, 175, 180, 185; British Museum). 



Grenada: (Blackwelder station 150; British Museum). 



Tobago: (Blackwelder station 117A). 



Trinidad: (Blackwelder station 130). 



South America: Brazil (Erich.son, 1839b; Du Val, 1857; Fauvel, 1866; Sharp, 

 1876; Cameron collection), Venezuela, Brazh,, Argentina, Paraguay (Bern- 

 hauer and Schubert, 1914), Venezuela (Scriba, 1855). 



Central America: Mexico (Bernhauer and Schubert, 1914). 



Specimens examined. — I have examined 4 examples in the British 

 Museum, 7 in the collection of Dr. Cameron, 11 in the Rio Piedras 

 Experiment Station collection, 1 in the collection of Stuart T. Dan- 

 forth, 2 in the Mu.seum of Comparative Zoology, 21 in the United 

 States National Museum, and 307 collected by me in 1935-37. 



Remarks. — This species is readily distinguishable by the color pat- 

 tern of the elytra and the punctate antennal grooves. The former is 

 variable in the extent of the testaceous outer angles as well as in the 

 abruptness of the pale area. 



My specimens were collected from dung, manure, carrion, decaying 

 grass, and the edge of streams. 



* 



5. XANTHOLINUS HUMERALIS Erichson 



Xantholinus humeralis Erichson, 1839b, p. 327. — Beirnhauer and Schxibert, 



1914, p. 304.— Leng and Mutchler, 1914, p. 406. 

 Xantholinus pnncticeps DuVal, 1857, p. 35. — Chevroi^t and Faia'ei., 1863, p. 



430. — Gemminger and Harold, 1868, p. 603.- — Bernhauer and Schubert, 1914, 



p. 306. (Not Gu^rin, 1844; not White, 1874; not Eichelbaum, 1913.) 

 Xantholinus punctiger Gemminger and Harold, 1868, p. 603. — Bernhauer and 



Schubert, 1914, p. 306. — Leng and Mutchler, 1914, p. 406. 



Description. — Head black, pronotiun and abdomen piceous, elytra 

 custaneous with large indefinite discal pale area frequently extending 

 lo sides and humerus. Head nearly one-fifth longer than wide, dis- 

 tinctly cordate with the mandibles forming the apex; antennal grooves 



